Vulnerability Description
ISC DHCP 4.1.x before 4.1-ESV-R13 and 4.2.x and 4.3.x before 4.3.4 does not restrict the number of concurrent TCP sessions, which allows remote attackers to cause a denial of service (INSIST assertion failure or request-processing outage) by establishing many sessions.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Isc | Dhcp | 4.1-esv |
| Debian | Debian Linux | 8.0 |
| Canonical | Ubuntu Linux | 14.04 |
Related Weaknesses (CWE)
References
- http://lists.fedoraproject.org/pipermail/package-announce/2016-May/183458.htmlThird Party Advisory
- http://lists.fedoraproject.org/pipermail/package-announce/2016-May/183640.htmlThird Party Advisory
- http://lists.opensuse.org/opensuse-updates/2016-07/msg00066.htmlMailing ListThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2016-2590.htmlThird Party Advisory
- http://www.oracle.com/technetwork/topics/security/bulletinjul2016-3090568.htmlThird Party Advisory
- http://www.securityfocus.com/bid/84208Third Party AdvisoryVDB Entry
- http://www.securitytracker.com/id/1035196Third Party AdvisoryVDB Entry
- https://kb.isc.org/article/AA-01354Vendor Advisory
- https://lists.debian.org/debian-lts-announce/2019/11/msg00023.htmlThird Party Advisory
- https://usn.ubuntu.com/3586-1/Third Party Advisory
- http://lists.fedoraproject.org/pipermail/package-announce/2016-May/183458.htmlThird Party Advisory
- http://lists.fedoraproject.org/pipermail/package-announce/2016-May/183640.htmlThird Party Advisory
- http://lists.opensuse.org/opensuse-updates/2016-07/msg00066.htmlMailing ListThird Party Advisory
- http://rhn.redhat.com/errata/RHSA-2016-2590.htmlThird Party Advisory
- http://www.oracle.com/technetwork/topics/security/bulletinjul2016-3090568.htmlThird Party Advisory
FAQ
What is CVE-2016-2774?
CVE-2016-2774 is a vulnerability with a CVSS score of 5.9 (MEDIUM). ISC DHCP 4.1.x before 4.1-ESV-R13 and 4.2.x and 4.3.x before 4.3.4 does not restrict the number of concurrent TCP sessions, which allows remote attackers to cause a denial of service (INSIST assertion...
How severe is CVE-2016-2774?
CVE-2016-2774 has been rated MEDIUM with a CVSS base score of 5.9/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2016-2774?
Check the references section above for vendor advisories and patch information. Affected products include: Isc Dhcp, Debian Debian Linux, Canonical Ubuntu Linux.